Lunar calendar.



No- 853,959. PATENTED MAY 21, 1907.

G.OASA LUNAR GALE RV APPLICATION FILED 00120, 1906.

UNITED STATES PATENT OFFICE.

GIUSEPPE OASALE, or siiiIfiLLo, MEXICO.

LU'NAR CALENDAR.

Application filed October 20,

To all whom it may concern.-

Be it known that I, Grusnrrn CASALE, a subject of the King of Italy,residing at Saltillo, State of Coahuila, Mexico, have invented a new anduseful Improvement in Lunar Calendars, of which the following is aspecification.

My invention relates to improvements in calendars, and pertainsparticularly to a diagrammatical calendar of the lunar monthrepresenting in subdivisions of different colors the several periods ofthe month relating to the menstruation of women.

The object of my invention is to provide a device of this characterwhich may be readily adjusted so that only a portion of thediagrammatical chart or calendar is exposed to view, while the remainderof same is covered.

In the accompanying drawings illustrating my invention, Figure 1 is afront elevation of the calendar with a portion of the lunar chartexposed; Fig. 2 is a detail view of the segmental disk or shuttercovering the calendar chart; Fig. 3 is a diagrammatical view of thecalendar chart, and Fig. 4 is a detail view of the book or pad.

My invention includes generally, a circular chart which is divided intotwenty eight parts representing the days of the lunar month, which arearranged into six sections by radial lines which sections may bedillerently colored, a segmental shutter pivoted in the center of thecircular chart, and a book or pad attached to the chart.

Referring to the accompanying drawings, 1 designates a rectangularboard, preferably of thick card board, on which is printed or traced thelunar chart 2. Said chart cornprises the two concentric circles 3 and 4,the former being of a smaller diameter than the latter, which togetherform a circular band 5. The said circular band is divided. intotwentyeight equal parts by radial lines 6 which represent the days ofthe lunar month. The circular chart is also divided into six segmentalsections 7, 8, 9, 10, 11 and 12, of different sizes, which classify thedays of the month into irregular periods relating to the varyingconditions of the human ovum by radial lines 13 running from the centerof the chart.

The segmental shutter 14% is pivotally mounted concentrically on thechart 2. Said shutter, as shown in the drawings, comprises twosemi-circular sections a and I) having on the straight edge of each aperforated ear 1.5.

Specification of Letters Patent.

Patented May 21, 1907.

1906. Serial No. 339,761.

The shutters are pivotally mounted. on the chart by the pin 16, whichpasses through the perforations in the cars 15 and pierces the chart atits center and is riveted or otherwise secured on the back of the board.

It will be seen that one of the sections of the shutter is mounted abovethe other, so that by rotation upon the pivot, they will telescope, thusexposing any portion of the chart less than a half circle, in whichadjustment they will be held by frictional contact with the board andeach other thereby sharply demarking the periods before mentioned.

Secured by a cord or otherwise, the pamphlet 17 containing printedinstructions for the use of the chart is mounted on the board 1 beneaththe chart 2.

My invention will be readily understood upon reference to the foregoingdescription and the accompanying drawings, and it will be appreciatedthat the parts and combinations may be varied without departing from thespirit and scope of the invention.

Having thus described my invention, what I claim is 1. A lunar calendar,comprising a chart formed of" a circular band divided into partsrepresenting the days of the lunar month, and a sectional segmentalshutter centrally piv oted 011 the chart and adjustable to expose a partof said chart.

2. A lunarcalendar, comprising a circular chart having a circular bandabout the pe rimeter thereof, said band being divided into partsrepresenting the days of the lunar month, said chart being also dividedinto six irregular divisions by radial lines, and a sectional segmentalshutter centrally pivoted 011 the chart and adjustable to expose oneonly of any of said irregular divisions.

3. A lunar calendar, comprising a circular chart divided into segmentsrepresenting the days of the lunar month, a shuttercomposed of twosemi-circular segments pivotally secured at the center of the chartadapted to adjustably telescope each other and expose sections of thechart.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

GIUSEPPE CASALE.

itnessesz N. S. FAUOETT, .EAOUL F. LE MAT.

